An 800-KHz Radio Signal Is Detected at a Point 4

question 11

Multiple Choice

An 800-kHz radio signal is detected at a point 4.5 km distant from a transmitter tower.The electric field amplitude of the signal at that point is 0.63 V/m.Assume that the signal power is radiated uniformly in all directions and that radio waves incident upon the ground are completely absorbed.What is the magnetic field amplitude of the signal at that point? (c = 3.0 × 10⁸ m/s, μ₀ = 4π × 10^-7 T ∙ m/A,ε₀ = 8.85 × 10^-12 C²/N ∙ m²)

• A)2.1 nT
• B)1.7 nT
• C)1.3 nT
• D)2.5 nT
• E)2.9 nT

Recognize the economic implications of universal phenomena such as flooding on insurance markets.

Understand the relationship between insurance policy attributes (e.g., deductibles) and consumer behavior.

Evaluate how economic growth impacts businesses across various sectors.

Understand the concept of opportunity cost and how it applies to production choices.

---

Definitions:

Acceptable Name

A term used to describe a name that is officially recognized and conforms to the standards set by a governing body, such as in chemistry or taxonomy.

Compound

A chemical entity consisting of a combination of elements in a specific ratio, forming a substance with unique properties.

Acceptable Name

A name that meets the standard nomenclature rules set by IUPAC or other governing bodies, suitable for use in scientific contexts.

Acceptable Name

A term used to indicate a name for a chemical compound that is approved by a recognized authority, such as the International Union of Pure and Applied Chemistry (IUPAC).